CN204885157U

CN204885157U - LED light source of can mixing colours

Info

Publication number: CN204885157U
Application number: CN201520623413.5U
Authority: CN
Inventors: 申小飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-08-18
Filing date: 2015-08-18
Publication date: 2015-12-16
Anticipated expiration: 2025-08-18

Abstract

The utility model discloses a LED light source of can mixing colours, which comprises a substrate, be packaged with blue LED chip on the base plate, the blue LED chip of one of them part coats and is stamped the red phosphor glue film, and still some blue LED chip coats and is stamped green fluorescence arogel layer, and the LED chip of uncovered phosphor powder glue film is regional be blue light zone, covers that the LED chip that has the red phosphor glue film is regional to cover the regional green light zone of being of the LED chip that has green fluorescence arogel layer for red light zone, electric connection between the blue LED chip sends ruddiness and green glow down red exciting with the green fluorescence powder through the blue LED chip of single kind of colour, and the blue light that sends, ruddiness, green glow make up and to constitute full -colorly, have avoided the problem because of use three -colour LED chip brings.

Description

A kind of color-adjustable LED light source

Technical field

The utility model relates to lighting technical field, particularly relates to a kind of color-adjustable LED light source.

Background technology

Light-emitting diode is called for short LED, and the diode be made up of the compound of gallium, arsenic and phosphorus, can give off visible ray when electronics and hole-recombination, thus can be used for making light source.Due to advantages such as its long service life, high brightness, environmental protection, become people's daily life gradually and apply a kind of lighting apparatus very widely in producing.

LED intelligent lamp generally adopts the LED chip of red, blue, green three primary colors to be packaged into SMD light source, according to optics three primary color theory, all colours all can by primary colors red, indigo plant, greenly mix out according to a certain percentage, can be similar to by mixed light and recall the visible light color of nearly all human eye.The chip operating voltage of red bluish-green three kinds of colors is different, wherein red-light LED operating voltage is starkly lower than the operating voltage of green glow and blue-ray LED, and the operating voltage of green glow and blue-ray LED is more or less the same and also there is certain difference, when therefore adopting three primary colors to carry out mixed light, need at least two cover power supply circuits respectively to its power supply, make power supply cost very high, and the chip material of red bluish-green three kinds of colors is different, three kinds of photochromic decay of color chips can be caused inconsistent, affect colour mixture result.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of color-adjustable LED light source based on monochromatic LED chip.

Technical solution adopted in the utility model is:

A kind of color-adjustable LED light source, comprise substrate, described substrate is packaged with blue LED die, wherein a part of blue LED die is coated with red fluorescence powder glue-line, some blue LED die is coated with green emitting phosphor glue-line, the LED chip region not covering fluorescent material glue-line is blue light region, and the LED chip region being coated with red fluorescence powder glue-line is red light district, the LED chip region being coated with green emitting phosphor glue-line is green Region, is electrically connected between described blue LED die.

Preferably, described red fluorescence powder glue-line or green emitting phosphor glue-line cover on single led chip.

Preferably, described red fluorescence powder glue-line or green emitting phosphor glue-line are the fluorescent material glue-line adopting the mode of silk screen printing or inkjet printing to obtain.

Preferably, described green Region is intervally distributed with between described red light district and described blue light region.

Preferably, described red light district, described blue light region and described green Region respectively surround an annular section.

Preferably, described three annular centers of circle are the center of described substrate, and the internal diameter of the annular that described red light district, green Region, blue light region surround reduces successively.

Preferably, described blue LED die upside-down mounting on the substrate, described substrate is laid with circuit, and described blue LED die is by described connection.

Preferably, described baseplate material is highly heat-conductive material.

The beneficial effects of the utility model are: use three color chips for current color-adjustable LED light source, the problem that three color chip operating voltages are different and the photochromic decay of three color chips is inconsistent, the utility model provides a kind of color-adjustable LED light source, comprise substrate, described substrate is packaged with blue LED die, wherein a part of blue LED die is coated with red fluorescence powder glue-line, some blue LED die is coated with green emitting phosphor glue-line, the LED chip region not covering fluorescent material glue-line is blue light region, the LED chip region being coated with red fluorescence powder glue-line is red light district, the LED chip region being coated with green emitting phosphor glue-line is green Region, be electrically connected between described blue LED die, under red and green emitting phosphor excite, ruddiness and green glow is sent by single kind of color blue LED chip, the blue light sent, ruddiness, green glow combination can form full-color, avoid the problem because using three-color LED chip to bring.

Accompanying drawing explanation

Fig. 1 is color-adjustable LED light source structure diagram.

Fig. 2 is A-A cross-sectional view in Fig. 1.

Embodiment

Be clearly and completely described below with reference to embodiment and the accompanying drawing technique effect to design of the present utility model, concrete structure and generation, to understand the purpose of this utility model, characteristic sum effect fully.Obviously; described embodiment is a part of embodiment of the present utility model, instead of whole embodiment, based on embodiment of the present utility model; other embodiments that those skilled in the art obtains under the prerequisite not paying creative work, all belong to the scope of the utility model protection.In addition, all connection/annexations related in patent, not singly refer to that component directly connects, and refer to and according to concrete performance, can connect auxiliary by adding or reducing, and form more excellent draw bail.Each technical characteristic in the utility model creation, can combination of interactions under the prerequisite of not conflicting conflict.

With reference to Fig. 1, the utility model provides a kind of color-adjustable LED light source, comprises substrate 1, and the material of described substrate 1 is highly heat-conductive material.Described substrate 1 is packaged with blue LED die 2, wherein a part of blue LED die 2 is coated with red fluorescence powder glue-line 4, some blue LED die 2 is coated with green emitting phosphor glue-line 3, the LED chip region not covering fluorescent material glue-line is blue light region, the LED chip region being coated with red fluorescence powder glue-line 4 is red light district, the LED chip region being coated with green emitting phosphor glue-line 3 is green Region, is electrically connected between described blue LED die 2.Color-adjustable LED light source described in the utility model sends ruddiness and green glow by single kind of color blue LED chip under red and green emitting phosphor excite, the combination of the blue light sent, ruddiness, green glow can form full-color, avoids the problem because using three-color LED chip to bring.The upside-down mounting of described blue LED die 2, on described substrate 1, described substrate 1 is laid with circuit, and described blue LED die 2 is by described connection.Described substrate 1 material is highly heat-conductive material.Described red fluorescence powder glue-line 4 or green emitting phosphor glue-line 3 cover on single blue LED die 2, and described red fluorescence powder glue-line 4 or green emitting phosphor glue-line 3 adopt the mode of silk screen printing or inkjet printing to obtain.Adopt silk screen printing or inkjet printing mode to prepare the phosphor gel that fluorescent material glue-line can use poor fluidity, and the thickness of the fluorescent material glue-line of coating is little, does not need to arrange box dam, directly applies.In other embodiments, described red fluorescence powder glue-line 4 or green emitting phosphor glue-line 3 can also cover on multiple blue LED die 2.Described red light district, described blue light region and described green Region respectively surround an annular section.Described three annular centers of circle are the center of described substrate, and the internal diameter of the annular that described red light district, green Region, blue light region surround reduces successively.

With reference to Fig. 2, Fig. 2 is A-A cross-sectional view in Fig. 1, described green emitting phosphor glue-line 3 or red fluorescence powder glue-line 4 cover on single blue LED die 2, because the area of fluorescent material glue-line is little, the light that the blue LED die 2 not covering fluorescent material glue-line is launched not easily occurs to excite with the green emitting phosphor glue-line 3 of adjacent green Region by mistake.

Claims

1. a color-adjustable LED light source, comprise substrate, it is characterized in that, described substrate is packaged with blue LED die, wherein a part of blue LED die is coated with red fluorescence powder glue-line, some blue LED die is coated with green emitting phosphor glue-line, the LED chip region not covering fluorescent material glue-line is blue light region, the LED chip region being coated with red fluorescence powder glue-line is red light district, the LED chip region being coated with green emitting phosphor glue-line is green Region, is electrically connected between described blue LED die.

2. color-adjustable LED light source according to claim 1, is characterized in that, described red fluorescence powder glue-line or green emitting phosphor glue-line cover on single led chip.

3. color-adjustable LED light source according to claim 1, is characterized in that, described red fluorescence powder glue-line or green emitting phosphor glue-line are the fluorescent material glue-line adopting the mode of silk screen printing or inkjet printing to obtain.

4. color-adjustable LED light source according to claim 1, is characterized in that, is intervally distributed with described green Region between described red light district and described blue light region.

5. the color-adjustable LED light source according to any one of claim 1-4, is characterized in that, described red light district, described blue light region and described green Region respectively surround an annular section.

6. color-adjustable LED light source according to claim 5, is characterized in that, described three annular centers of circle are the center of described substrate, and the internal diameter of the annular that described red light district, green Region, blue light region surround reduces successively.

7. color-adjustable LED light source according to claim 1, is characterized in that, described blue LED die upside-down mounting on the substrate, described substrate is laid with circuit, and described blue LED die is by described connection.

8. color-adjustable LED light source according to claim 1, is characterized in that, described baseplate material is highly heat-conductive material.